Kubota BX1870 Workshop Manual

TRANSAXLE
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
2-M2
2. TRAVELING SYSTEM
[1] HYDROSTATIC TRANSMISSION
(1) Structure
The hydrostatic transmission consists of variable displacement piston pump, fixed displacement piston motor and
valve system.
9Y1210855TXM0002US0
(1) Check and High Pressure
Relief Valve
(2) Trunnion Arm
(3) Center Section
(4) Piston Spring
(5) Piston
(6) Thrust Ball Bearing
(7) Swashplate
(8) Cradle Bearing
(9) Spring
(10) Circlip
(11) Spring
(12) Circlip
(13) Thrust Ball Bearing
(14) Cylinder Block (Motor)
(15) Plug
(16) Motor Shaft
(17) Needle Bearing
(18) Ball Bearing
(19) Pump Shaft
(20) Cylinder Block (Pump)
(21) Charge Relief Valve
KiSC issued 02, 2017 A

Kubota BX1870 Specifications

General

Engine Type	Diesel
Engine Power	18 hp
Transmission	Hydrostatic
Fuel Capacity	6.6 gallons
Wheelbase	55.1 inches
Type	Sub-Compact Utility Tractor
Engine	Kubota D722
PTO Power	13.5 hp
Number of Cylinders	3
Cooling	Liquid
Drive	4WD
Drive Type	4WD
Width	44.5 inches
Hydraulic System Type	Open center
PTO Speed	540 RPM
Displacement	0.719 L
Fuel Tank Capacity	6.6 gallons
Gears	Infinite (2-range) forward and reverse
Front Tire Size	18x8.5-10
Rear Tire Size	26x12-12